Revelation 4:6

4:6 and in front of the throne was something like a sea of glass, like crystal.

In the middle of the throne and around the throne were four living creatures full of eyes in front and in back.

Revelation 5:1

The Opening of the Scroll

5:1 Then I saw in the right hand of the one who was seated on the throne a scroll written on the front and back and sealed with seven seals.

Revelation 7:1

The Sealing of the 144,000

7:1 After this I saw four angels standing at the four corners of the earth, holding back the four winds of the earth so no wind could blow on the earth, on the sea, or on any tree.